PSI63C0.789-L2 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI63C0.789-L2 is a medium frequency inverter from the PSI Frequency Inverters series and weighs approximately 21 kilograms. It is air cooled, operates within a temperature range of +10 to +55 degrees Celsius, and is protected to the IP20 standard. The unit supports mains voltages from 480 to 690 VAC with a frequency of 50 or 60 Hz, and has an integrated power supply providing up to 2 Amps at 24 VDC.
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Product Description:
The PSI63C0.789-L2 is a medium-frequency inverter produced by Bosch Rexroth Indramat and included in the PSI Frequency Inverters series. It converts high-voltage mains power into a controlled medium-frequency output that heats, welds, or hardens metallic workpieces, allowing precise energy delivery inside automated manufacturing cells. The device functions as a stand-alone power stage that interfaces with upstream PLCs and downstream resonant circuits through standard field wiring.
The inverter relies on an air-cooled heat exchange path, so the cabinet must provide unobstructed airflow instead of external water circuits. Its housing carries a protection rating of IP20, permitting installation inside an electrical cabinet while still requiring a dust-controlled environment. An integrated auxiliary supply can furnish up to 2 A, and its regulated rail is fixed at 24 VDC for contactors, sensors, or small logic controllers. The power section accepts three-phase feeds from 480–690 VAC, providing compatibility with high-voltage networks in forging or melting facilities. The unit meets climatic category 3K3 requirements for vibration, humidity, and altitude in industrial workshops. A dedicated Ethernet timer channel coordinates firing sequences with external control hardware.
Line synchronization is maintained at 50/60 Hz, so no additional frequency conversion is needed when systems operate in different regions. Internal switching produces up to 360 W of cooling losses that must be removed by control-cabinet fans sized for the recommended airflow. Continuous operation is supported from +10 to +55 °C, while storage is permitted from -25 to +70 °C. These operating and storage limits allow the inverter to remain in controlled industrial facilities or unpowered storage areas within the stated temperature ranges. With a total mass of 21 kg, the inverter requires a mounting structure that can support its weight securely. Adequate clearance around the air path helps the cooling system remove heat without obstructing adjacent cabinet equipment.
Frequently Asked Questions about PSI63C0.789-L2:
Q: What is the supported mains voltage range for the PSI63C0.789-L2 frequency inverter?
A: The PSI63C0.789-L2 supports a mains voltage range of 480 to 690 VAC.
Q: What are the output specifications of the integrated power supply unit in the PSI63C0.789-L2?
A: The integrated power supply unit of this inverter delivers a maximum output current of 2 A at 24 VDC.
Q: What level of protection does the PSI63C0.789-L2 offer according to IP standards?
A: This model features an IP 20 degree of protection, providing limited defense against solid objects but no protection from water.
Q: What is the operational temperature range for the PSI63C0.789-L2?
A: The PSI63C0.789-L2 operates within a temperature range of +10 to +55 °C.
Q: How is the PSI63C0.789-L2 frequency inverter cooled?
A: This inverter uses an air cooled method to manage temperature during operation.
